Is Your 2009 Chevrolet Traverse Running Rough?
The Engine Control Module (ECM), often called the engine computer, is the electronic brain of your 2009 Traverse. It’s responsible for managing everything from fuel injection and ignition timing to transmission shifting and emissions control. When it starts to fail, it can cause a cascade of confusing and frustrating problems, leaving you with an unreliable vehicle and a persistent Check Engine Light. Don’t let a faulty computer keep your SUV off the road. This direct-replacement ECM is the reliable solution you need to restore your vehicle’s performance and peace of mind.
Common Symptoms of a Failing 2009 Traverse ECM
A failing engine computer can manifest in numerous ways. If you’re experiencing any of the following issues, a faulty ECM could be the culprit. This module is a common failure point on these GM 3.6L platforms, including the Acadia, Enclave, and CTS.
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Engine stalling, stumbling, or hesitation during acceleration.
- ✔ Noticeable decrease in fuel economy.
- ✔ Rough or erratic idling.
- ✔ Harsh or delayed automatic transmission shifting.
- ✔ Complete no-start condition where the engine cranks but won’t fire.
- ✔ Communication errors with diagnostic scan tools.
Plug-and-Play Solution: Programmed to Your VIN
Replacing an ECM isn’t just a simple swap. The module must be programmed with your vehicle’s specific Vehicle Identification Number (VIN) and the latest software from General Motors. This process ensures that the computer communicates correctly with all other modules in your vehicle, from the transmission to the anti-lock brakes. We handle this critical step for you. After your purchase, simply provide us with your VIN, and our technicians will flash the module with the correct GM-certified calibration for your exact vehicle. This means no expensive trips to the dealership for programming—it arrives at your door ready for installation.
Part Number Compatibility
This module is a direct replacement for several original equipment part numbers. Please verify that your existing module’s part number is on this list:
- 12630594
- 12623325
- 12628387
- 12605672
- 19300016
Verified Fitment For:
- ✔ 2009 Chevrolet Traverse (Electronic Control Module; behind fan shroud)
- ✔ 2009 GMC Acadia (Electronic Control Module; behind fan shroud)
- ✔ 2009 Buick Enclave (Electronic Control Module; behind fan shroud)
- ✔ 2009 Saturn Outlook (Electronic Control Module; behind fan shroud)
- ✔ 2008-2009 Cadillac CTS (Electronic Control Module; RH front engine compartment, 3.6L, VIN V)
- ✔ 2008-2009 Cadillac STS (Electronic Control Module; RH engine, 3.6L)
Frequently Asked Questions
Do I need to have this programmed by a dealer?
No. We program the module to the VIN you provide before we ship it. This means it is ready to be installed in your vehicle without any additional programming required.
What is a VIN and where do I find it?
The VIN is your vehicle’s unique 17-digit identification number. You can typically find it on your vehicle’s registration, insurance card, or on a small plate on the driver’s side dashboard visible through the windshield.
Is any other setup required after installation?
In some cases, a security relearn or crank position sensor relearn procedure may be necessary. These are simple procedures that can often be done without special tools. Instructions can be readily found online for your specific model.
Will this fix my check engine light?
If the check engine light and other symptoms are caused by a faulty ECM, this part will resolve those issues. It is crucial to properly diagnose the problem before ordering to ensure the ECM is the root cause.
How do I know if this part number is correct for my vehicle?
The best way is to check the part number on your original ECM. This unit replaces part numbers 12623325, 12628387, 12605672, 12630594, and 19300016. If your number matches, this is the correct part.